HVAC (Heating, Ventilation and Air Conditioning) Systems
HVAC (heating, ventilation and air conditioning) systems play an integral part in homes as well as large buildings such as schools and hospitals, including data centers.
An HVAC system comprises six primary parts. An HVAC program offered at a trade school can teach students how these components come together and function together, as well as how to diagnose, troubleshoot and repair them.
Air Conditioning
HVAC systems serve an integral function in keeping the air cool in your home by exchanging warm, moist indoor air with cooler, drier outdoor air – helping prevent mold growth that could otherwise cause health concerns and structural damage.
Air conditioning systems can be divided into two separate components, the cooling and the heating components. The cooling system resides outside your house and uses fans and blowers to distribute cooled air throughout your ductwork system.
Heating components of HVAC systems typically reside in your furnace while the thermostat will determine when to switch between heating and cooling components of the system. Regular maintenance is key to keeping an HVAC system functioning well – this prevents small issues from becoming costly repairs while keeping everything operating smoothly.
Furnace
Furnaces generate heat by burning fuel sources such as natural gas or propane and then dispersing it throughout your home through vents, fan motors and ductwork. They may either be gas or electric furnaces or dual fuel systems which incorporate both.
Air conditioners help your home to remain comfortable by absorbing, transporting, and discharging heat; making them an essential element in any HVAC system. Operated by a compressor with an evaporator coil and fan motor in tandem, they help circulate both warm and cool air throughout your space.
Thermostat
A thermostat is a device that monitors and controls the temperature in physical systems by sensing temperature variations and taking measures to maintain their environment within its preset limits. Most thermostats can also be programmed.
Many models feature a small switch or cycle button to set your air conditioner for cooling. You should move or press it until a number appears on the display that corresponds with the ambient temperature in your home.
Programmable thermostats come equipped with several settings, including "sleep" time and temperature settings to save both energy and money when sleeping at night. Other settings allow you to schedule when and at what temperatures you will be away during weekdays so your system won't run while you are gone.
Evaporator Coil
Evaporator coils are at the heart of any air conditioning unit's cooling. Situated within its indoor air handler or cooling unit, these copper coils connect directly with extremely cold refrigerant flowing from its source to keep its temperature at just right levels.
The blower fan draws warm household air over an evaporator coil, which absorbs it and cools the refrigerant. Water vapor condenses around these coils as it passes over, helping reduce humidity levels in your home.
Your evaporator coil works most efficiently when kept clean. When dust and gunk accumulate on it, heat transfer is reduced, forcing your system to use more energy just to meet thermostat settings. Therefore, it's crucial for both you and your HVAC provider to set a regular maintenance plan together.
Ductwork
Ductwork refers to the network of conduits or tubes used to distribute air from furnace and air conditioning units throughout the home. When properly designed and installed, ductwork provides energy efficiency at an economical price and comfort for its inhabitants; when poorly planned or designed however, ductwork may damage HVAC equipment, reduce indoor air quality, increase energy costs or lead to costly repair bills.
Ductwork refers to vents that are installed in walls, floors and ceilings in order to bring air conditioning into living spaces. Most ductwork is constructed from rigid sheet metal to limit airflow restrictions and maintain an ideal temperature, and should be regularly inspected for holes or cracks that might rob conditioned air of its benefits. Holes or cracks in ductwork may lead to loss of conditioned air; so periodic duct cleaning should be conducted. Other forms of ductwork include take-offs that divert small portions of main duct flows into branch ducts; turning vanes that minimize resistance; volume control dampers that may either manually or automatically regulate volume control dampers for optimal temperature regulation.
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HVAC (heating, ventilation and air conditioning) systems play an integral part in homes as well as large buildings such as schools and hospitals, including data centers. An HVAC system comprises six primary parts. An HVAC program offered at a trade school can teach students how these components come together and function together, as well as…